Apu tri pac not blowing cold

Discussion in 'Trucks [ Eighteen Wheelers ]' started by mitmaks, Apr 9, 2020.

  1. mitmaks

    mitmaks Road Train Member

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    May 16, 2014
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    My apu a.c. not working properly. It starts up and I hear it run but it just blows warm air.
    Probably refrigerant leaked out. I looked in manual and it says 1.2-2 lbs needed depending on size of hoses.
    Any things I could check to make sure it's not something else?
     
    truckdriver31 Thanks this.
  2. 062

    062 Road Train Member

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    Oct 20, 2013
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    Make sure the condenser fan is working. You can pick up a can of 134 that has the gauge, and hose to see if it has any Freon in the system. If it’s a small leak there may be enough to charge it back up temporarily.
     
  3. truckdriver31

    truckdriver31 Road Train Member

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    Sep 18, 2013
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    put gauges on it first. dont buy or fix anything until gauges go on it
     
    mitmaks and BoxCarKidd Thank this.
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